From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B9FD207657; Sat, 22 Feb 2025 09:52:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740217929; cv=none; b=NYyoajpWdMUJCOrj09Sog8nQPQ4sKx2/yDChfHvQqBvYemaVzdFo7SHOeGU69ffxFVb0jEuIo624vjZc8rE2p4bNBjwaIi6oMDXXdqYIop3hXW+OniuJxW0j0UW3q72BXbWD98mR/sKCyv1UP6zcl5NKLVhau2r/pV6YYNATAW4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740217929; c=relaxed/simple; bh=sOMAW8cG2GfHTMf3SqhYwuELAxdo/LpQe+CzmYleSzQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Um55cbTQP/oOyKCkTWiWCbac6mg8L8tmWqdTJjeyChbJXOUSPliR/rEhKhtnyJvh3lb0M0b1wMa47CVlTU+8JIK3M3gcSoOIg0p+jSRhxDhJdzXsxteifCKwqxkJ0jpxsrt+NqhbUVMTL5S+Ld/TB7syU3Zrmf/QBCcDQECcCok= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GUY1MgXT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GUY1MgXT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EED33C4CED1; Sat, 22 Feb 2025 09:52:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740217929; bh=sOMAW8cG2GfHTMf3SqhYwuELAxdo/LpQe+CzmYleSzQ=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=GUY1MgXTQOyriPbV/qtpWcFe/zUFNbZsRzCUsO+DL+/ONDosFOp5Wv+v9VoJcCSTQ cM8bbgL7lymsXxTvauGMSdITHAdJNNx4OQRMYM5ho/UCe8SYg47VmVun/oLExAFUqz Es8SENLFtVwyPhklAdLAZsto3ryONIkUQgtBatV3OSEcvWQ+JgkItLVHkL1fYknYw3 R5pe9YpD3HjDIVbjlW0N+3BLna9ZeMUtT5WQfzRn94ASJpyjuwwfO0UpWi9tgvDDBy a5ctJFgKuJkv4MZYRpNYnEINiUzgAAsFmbxMt7jYXUJl+MhSpwOgNQ1TTFGzKkUY96 +R8/9iNO90A2A== Message-ID: <3e196e9c-c942-4026-8d6c-69c9930bebd5@kernel.org> Date: Sat, 22 Feb 2025 10:52:02 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 2/4] dt-bindings: soc: spacemit: Add spacemit,k1-syscon To: Haylen Chu Cc: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Haylen Chu , Yixun Lan , linux-riscv@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Inochi Amaoto , Chen Wang , Jisheng Zhang , Meng Zhang References: <20250103215636.19967-2-heylenay@4d2.org> <20250103215636.19967-4-heylenay@4d2.org> <19e5129b-8423-4660-8e4f-8b898214d275@kernel.org> <2ab715bd-e26c-41bb-ac64-baa864d90414@kernel.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 15/02/2025 09:41, Haylen Chu wrote: > >>> }; >>> >>> For the other two clock controllers (APBS and APBC), syscons are really >>> unnecessary and it's simple to fold them. >> >> >> I don't follow. Do we talk about children or syscon compatible? > > APBS region contains only clock (PLL) bits and APBC region contains only > reset and clock bits, so I was thinking about dropping the syscon nodes > and changing their compatible to spacemit,k1-plls and > spacemit,k1-cru-apbc. > > In summary, my plan is, > > - For MPMU, APMU and APBC region, keep the binding in soc/spacemit. > They'll be reset, clock and power controllers, with compatible > "spacemit,k1-syscon-*". > - For APBS region, write a new binding clock/spacemit,k1-plls, as it > contains only PLL-related bits. It acts as clock controller. > - All split children will be eliminated, there'll be only four device > nodes, one for each region, matching the datasheet. > - Put all clock-related binding definition of SpacemiT K1 in > dt-bindings/clock/spacemit,k1-ccu.h > > Is it fine for you? > That did not explain hardware to me. You assume that some way, maybe through magical crystal ball, I know your hardware and will tell you what to do. No. I have dozens of other patches in my inbox. It's you who should explain the hardware in simple, concise way so we can judge whether DT description is correct. Again: define what is the actual device, what is its address space, what are its possible *separate* and *distinctive* children. Best regards, Krzysztof